"I agreed to interview Pete Buttigieg this weekend – the campaign was not clear that the venue would be a fundraiser. We’ll be rescheduling the interview to a more appropriate time/place," Ryan, who is also a White House correspondent for American Urban Radio Networks, wrote on Twitter. "Looking forward to asking him the tough questions the AURN audience wants answers to."

I agreed to interview Pete Buttigieg this weekend – the campaign was not clear that the venue would be a fundraiser. We’ll be rescheduling the interview to a more appropriate time/place. Looking forward to asking him the tough questions the AURN audience wants answers to.

In September, Buttigieg invited Ryan to be his guest at a Congressional Black Caucus (CBC) dinner.

"Thank you @PeteButtigieg for inviting me to be your guest at the CBC Dinner. The last time I was invited to the dinner by a presidential candidate was @barackobama. You know what happened after that!" she wrote on Twitter.

Ryan's announcement on Friday came the same day the Buttigieg campaign said it will be removing former attorney Steve Patton as a sponsor of a Chicago fundraiser scheduled for later that day, The Associated Press reported.

Patton led an effort to block the release a video depicting the shooting death of Laquan McDonald, a black teenager in Chicago whose death by a police officer prompted months of protests that eventually ended in the officer's conviction.

“Transparency and justice for Laquan McDonald is more important than a campaign contribution,” Buttigieg campaign spokesman Chris Meagher said in a statement. “We are returning the money he contributed to the campaign and the money he has collected. He is no longer a co-host for the event and will not be attending.”